Alex Gonzalez

Hadoop “Unable To Load Native-Hadoop Library For Your Platform” Warning

As you are unable to load native hadoop libraries for your platform, I assume you're running Hadoop on 64bit CentOS. The reason you saw that warning is the native Hadoop library $HADOOP_HOME/lib/native/libhadoop.so.1.0.0 was actually compiled on 32 bit. Anyway, it's just a warning, and won't impact Hadoop's…

Big Data Hadoop

Answered Nov 18, 2022 · 2.0K Views Read answer →

What are the ways to prevent a deauthentication attack?

Cisco spearheaded a method of detecting a deauthentication attack and even protecting this type of attack if it is enabled and the client device supports it (minimum support of CCXv5). The Cisco feature is called "Management Frame Protection" and full details can be found on the Cisco website. In essence, the process…

Cyber Security

Answered Oct 19, 2022 · 1.7K Views Read answer →

Queue offer vs add - what's the difference?

Queue Offer vs Add The difference is that offer() will return false if it fails to insert the element on a size restricted Queue, whereas add() will throw an IllegalStateException. You should use offer() when failure to insert an element would be normal, and add() when failure would be an exceptional occurrence (that…

Java

Answered Oct 13, 2022 · 2.2K Views Read answer →

What should I do if I need a javascript runtime environment?

Regarding the javascript runtime environment, any of the major browsers (IE, FireFox, Chrome, Safari, etc..) will execute and display the results of JavaScript code that you put into it. You can open the developer console in Chrome and in IE using F12 and in Firefox using Ctrl+Shift+K. Alternatively you can simply put…

Java

Answered Oct 10, 2022 · 1.1K Views Read answer →

Is C++ faster than java?

Your question- Is C++ faster than java can be answered as - All things being equal, you could say: no, Java should never be faster. You could always implement Java in C++ from scratch and thereby get at least as good performance. In practice, however: JIT compiles the code on the end-user's machine, allowing it to…

Java

Answered Oct 10, 2022 · 1.1K Views Read answer →

Why should we have a private static Java method?

The characteristic of benign private static java is independent of the visibility. The reasons that you will want to have a static method (some code that does not depend on non-static members) will still be useful. But maybe you don't want anyone/anything else to use it, just your class.

Java

Answered Oct 6, 2022 · 1.1K Views Read answer →

Is Java cast boolean to int a good idea?

With other languages the situation is not so clear, but python happens to be specified in such a way that you can depend on it always casting to 1 and 0. Python's designers are some of the best with regard to the principle of least astonishment. The issue is that python is relatively rare as a first language, and…

Java

Answered Oct 6, 2022 · 1.1K Views Read answer →

What's the use of Geodata Service in ArcGIS API for javascript?

You can Convert the data into Json Format and use it in your application.You can write a handler that can convert Data from sql into JSON.Sql Data to Json.Using Json you can Create feature set and feature collection and display feature layer.

Java

Answered Oct 6, 2022 · 1.1K Views Read answer →

What to do in case multiple conditions?

In case multiple conditions - ,CASE WHEN i.DocValue ='F2' AND c.CondCode IN ('ZPR0','ZT10','Z305') THEN c.CondVal ELSE 0 END as Value There are two types of CASE statements, SIMPLE and SEARCHED. You cannot evaluate multiple expressions in a Simple case expression, which is what you were attempting to do. -- Simple…

SQL Server

Answered Sep 30, 2022 · 1.1K Views Read answer →

How to convert timestamp to timestamptz postgres?

Pay attention that the correct time zone (UTC in your case) is applied during the conversion. If you are not explicit about this, the time zone of the current session is assumed - typically not UTC. ALTER TABLE tbl ALTER ts_column TYPE timestamptz USING ts_column AT TIME ZONE 'UTC';Check a possible column default for…

SQL Server

Answered Sep 29, 2022 · 3.1K Views Read answer →

How do I enable the Salesforce login sandbox?

Using MFA in combination with SSO requires a separate setting, as described in the salesforce docs To set up the Salesforce login sandbox MFA service, take these steps. In Setup, in the Quick Find box, enter Session, then select Session Settings.In Session Security Levels, make sure your SSO configuration is in the…

Salesforce

Answered Sep 23, 2022 · 1.3K Views Read answer →

How to resolve the issue of sales navigator login?

If anyone else is facing the same issue of sales navigator login, Just want to add that I contacted LinkedIn support and confirmed that it is expected behavior.

Salesforce

Answered Sep 23, 2022 · 2.0K Views Read answer →